Big infrastructure upgrades are pushing demand for hardware for data centers, especially networking switches. IBM is the latest to join the party and has just launched a new switch based on the OpenFlow specifications provided by the Open Networking Foundation. OpenFlow is a network protocol that was developed over the past six years at Stanford University and has since been adopted by many companies. It’s part of the software-defined networking movement we have covered extensively over past few months. IBM showed off the switch in May 2011.